C Program to Count number of digits in number without using mod operator

Problem Statement : Write a C Program to Find the Number of Digits in an entered number ?

#include<stdio.h>
#include<string.h>
int main() {
   int num, digits;
   char ch[10];
   printf("\nEnter the Number : ");
   scanf("%d", &num);
   sprintf(ch, "%d", num);
   digits = strlen(ch);
   printf("\nNumber of Digits : %d", digits);
   return(0);
}

#include<stdio.h>

#include<string.h>

int main() {

int num, digits;

char ch[10];

printf("\nEnter the Number : ");

scanf("%d", &num);

sprintf(ch, "%d", num);

digits = strlen(ch);

printf("\nNumber of Digits : %d", digits);

return(0);

}

Output:

Enter the Number : 1234
Number of Digits : 4

1 2	Enter the Number : 1234 Number of Digits : 4

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C Program to Count number of digits in number without using mod operator